Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240412-en -
resource tags
arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system -
submitted
21-04-2024 15:57
Static task
static1
Behavioral task
behavioral1
Sample
ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe
Resource
win10v2004-20240412-en
General
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Target
ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe
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Size
128KB
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MD5
ffa55a7cbe4dfd829703eec4378861ed
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SHA1
83606bbbdad6f3f548c7bb5f76d8e818f89a31c7
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SHA256
872c8b8cb59f8041fdfab8f721be311739b84a026989b194ca015f74c1c702e8
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SHA512
4cfbd69969191da9d4660617836e3346de946fd6c89882106ece9fe1f6fcd83d706ec0df6d6cd44912c42bc2ea9b565f8fcb90cd51e225662e9d044917b85d37
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SSDEEP
3072:ahfdRzH0M8hu63W6X8kkBNqZLH8CAPu63W6X8kk:ahbHv8kGekkBwZjAGGekk
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4928 outlook.exe -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Windows\\sys32.exe" ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe -
Drops file in Windows directory 5 IoCs
description ioc Process File opened for modification C:\Windows\sys32.exe ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe File opened for modification C:\Windows\outlook.cfg outlook.exe File created C:\Windows\sys32.exe ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe File created C:\Windows\outlook.exe ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe File opened for modification C:\Windows\outlook.exe ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 1368 4928 WerFault.exe 87 -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 4628 wrote to memory of 4928 4628 ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe 87 PID 4628 wrote to memory of 4928 4628 ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe 87 PID 4628 wrote to memory of 4928 4628 ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe"C:\Users\Admin\AppData\Local\Temp\ffa55a7cbe4dfd829703eec4378861ed_JaffaCakes118.exe"1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:4628 -
C:\Windows\outlook.exeC:\Windows\outlook.exe2⤵
- Executes dropped EXE
- Drops file in Windows directory
PID:4928 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4928 -s 161083⤵
- Program crash
PID:1368
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4928 -ip 49281⤵PID:3524
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD52d54ec343a05498834824c0ad8db1254
SHA12c75883a7d5d2324055a56123201a986c5cab571
SHA256660609ebbc5666f4c0b46f45423e6336b3fd1f6719b02f3f6ed46ce338358c71
SHA5121a875eedada0d5f620263d1c7fa768f3c2e1d46e5159cf9f9242d26c90d2a973e21aba7a83b63d11c02e75d7ab79d16d5d97cc236da2b626ec35545f9e4bb8e4
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Filesize
1KB
MD5e2671f253e1692f97a8bdbc8382b77fe
SHA1741c1ab3428bfa01db0385f46b7a19c795be7736
SHA25668b6205361e23914ea6baac565c3ed449c3ce2fe44e3aaabec41e2468817d59e
SHA512aa9e73396c674c19bac25977e996ce1f5edcb0305e064181983676cab6ef9e938cef12913bfa1577cca8a5106b483026e2e308c0c9c3f33e8430a1d1d8589144
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Filesize
1KB
MD50ac3f95be3bab79fca74c60a628ad0e5
SHA19809eb53dac84cedb4f6f8923d918a733cfa8bf9
SHA256b7b67ac67725796507dd07ffe75b2165350c28d2266ca214d6edd2918201f03d
SHA512458a58cef8cc6ae8a655c4bb66654c2f183ef3b23e214ef332fdfb56599410d8cb418e541061a086de6d75a8c48635a862e7194cd04f40bef0b2d7d43dec8347
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Filesize
49KB
MD50e9379e357aba95f8b9883af9b67675e
SHA1280a174a414e5b8588f42b6328af2c8c8ff4394f
SHA25696b9c4ead67d03eb2c69103a983274e013e3466e80d8f95bd7cf3aea8be05b28
SHA5126cc383806882729cd889b025802ac0d5e1c55a74b3e7d7c98932644e8802fe52b5b14a886eff70ab7deaa70fb60bb9898e55b5cd83b5b99e2a2d107dce367784